Spectroscopic behaviour of the Herbig Be star HD 200775 around its maximum activity in 1997

Details Spectroscopic behaviour of the Herbig Be star HD 200775 around its maximum activity in 1997 Spectroscopic behaviour of the Herbig Be star HD 200775 around its maximum activity in 1997

Jul 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000a%26a...359..299p&link_type=abstract

Astronomy and Astrophysics, v.359, p.299-305 (2000)

Astronomy and Astrophysics

Astrophysics

9

Techniques: Spectroscopic, Stars: Circumstellar Matter, Stars: Individual: Hd 200775, Stars: Pre-Main Sequence

Scientific paper

We present the results of high-resolution spectroscopic observations of the pre-main-sequence (PMS) Herbig Be star HD 200775 obtained between August 1994 and December 1999. The behaviour of Hα , Hβ and He i before, during, and after the last high-activity event of the object in 1997 is studied. A complex picture of the circumstellar evolution in this period is discussed. It is concluded that the results of observations can be interpreted in the framework of a model with a variable stellar wind originating from the star. We emphasize the importance of coordinated high-resolution spectroscopic observations for further understanding the star's behaviour.

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